Proposal: Add setEnv/unsetEnv to "base"

Edward A Kmett ekmett at gmail.com
Wed Oct 3 20:59:17 CEST 2012


+1

Sent from my iPhone

On Oct 3, 2012, at 2:27 PM, Gregory Collins <greg at gregorycollins.net> wrote:

> +1 (a no-brainer, in my opinion) --- although you can get rid of unsetEnv if you make setEnv take a "Maybe String", which might be better. Ultimately though, who cares what color the bike shed is painted :)
> 
> On Wed, Oct 3, 2012 at 8:14 PM, Simon Hengel <sol at typeful.net> wrote:
>> Hi,
>> setting environment variables is possible on both POSIX and Windows
>> systems.  Currently this functionally is missing from
>> System.Environment; the "unix" package provides an implementation for
>> POSIX systems.
>> 
>> I propose to add setEnv/unsetEnv to System.Environment, so that it is
>> easier to write applications that behave the same on POSIX and Windows
>> systems.
>> 
>> I implemented both in a way, so that they behave exactly the same on
>> POSIX and Windows (modulo case sensitivity on Windows).
>> 
>> For now I prepared a standalone implementation [1] and corresponding
>> tests [2].  That implementation depends on the "unix" package.  If the
>> proposal is accepted, I will prepare a patch against "base" that
>> includes the relevant code from "unix".
>> 
>> Discussion Period: 2 Weeks
>> 
>> Cheers,
>> Simon
>> 
>> [1] https://github.com/sol/setenv/blob/master/src/System/SetEnv.hs
>> [2] https://github.com/sol/setenv/blob/master/test/System/SetEnvSpec.hs
>> 
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> 
> 
> 
> -- 
> Gregory Collins <greg at gregorycollins.net>
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